Patents by Inventor Randy Stevenson

Randy Stevenson has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 9698706
    Abstract: An electro-hydrodynamic system including an energy harvester and an adjustable member, wherein the energy harvester includes a charge source including: an injector configured to emit particles into a wind stream and an electrode configured to charge the particles to a first polarity and to generate a first electric field. The adjustable member supports the energy harvester, and is configured to control a distance between electrical ground and at least one component of the energy harvester. A method for controlling the electric field magnitude of an electro-hydrodynamic system including placing an energy harvester comprising a charge source at a distance away from electrical ground, the distance being an equilibrium distance; receiving a first measurement of a parameter indicative of electric field magnitude near the charge source; and in response to the first measurement surpassing a threshold, increasing the distance between the energy harvester and electrical ground.
    Type: Grant
    Filed: July 23, 2013
    Date of Patent: July 4, 2017
    Assignee: Accio Energy, Inc.
    Inventors: Dawn White, Randy Stevenson
  • Publication number: 20170133955
    Abstract: An electro-hydrodynamic system including an energy harvester and an adjustable member, wherein the energy harvester includes a charge source including: an injector configured to emit particles into a wind stream and an electrode configured to charge the particles to a first polarity and to generate a first electric field. The adjustable member supports the energy harvester, and is configured to control a distance between electrical ground and at least one component of the energy harvester. A method for controlling the electric field magnitude of an electro-hydrodynamic system including placing an energy harvester comprising a charge source at a distance away from electrical ground, the distance being an equilibrium distance; receiving a first measurement of a parameter indicative of electric field magnitude near the charge source; and in response to the first measurement surpassing a threshold, increasing the distance between the energy harvester and electrical ground.
    Type: Application
    Filed: July 23, 2013
    Publication date: May 11, 2017
    Applicant: Accio Energy, Inc.
    Inventors: Dawn White, Randy Stevenson
  • Publication number: 20160149519
    Abstract: An electrohydrodynamic system configured to harvest electrical energy from a wind stream flowing along a wind vector, including: a charged droplet generator configured to generate a first electric field, the charged droplet generator including: a manifold, a plurality of channels extending through the manifold thickness along a downstream face of the manifold, and a field shaper configured to generate a substantially uniform charging field proximal the plurality of channels that charges the droplets to a single polarity, wherein the first electric field opposes charged droplet movement along the wind vector.
    Type: Application
    Filed: November 25, 2015
    Publication date: May 26, 2016
    Inventors: Randy Stevenson, Dawn White, Joseph McElroy, Francis Mills, Mike Bosserman, Vladimir Orlyanchik
  • Publication number: 20130313942
    Abstract: An electro-hydrodynamic system including an energy harvester and an adjustable member, wherein the energy harvester includes a charge source including: an injector configured to emit particles into a wind stream and an electrode configured to charge the particles to a first polarity and to generate a first electric field. The adjustable member supports the energy harvester, and is configured to control a distance between electrical ground and at least one component of the energy harvester. A method for controlling the electric field magnitude of an electro-hydrodynamic system including placing an energy harvester comprising a charge source at a distance away from electrical ground, the distance being an equilibrium distance; receiving a first measurement of a parameter indicative of electric field magnitude near the charge source; and in response to the first measurement surpassing a threshold, increasing the distance between the energy harvester and electrical ground.
    Type: Application
    Filed: July 23, 2013
    Publication date: November 28, 2013
    Applicant: Accio Energy, Inc.
    Inventors: Dawn White, Randy Stevenson
  • Patent number: 8502507
    Abstract: An electro-hydrodynamic system including an energy harvester and an adjustable member, wherein the energy harvester includes a charge source including: an injector configured to emit particles into a wind stream and an electrode configured to charge the particles to a first polarity and to generate a first electric field. The adjustable member supports the energy harvester, and is configured to control a distance between electrical ground and at least one component of the energy harvester. A method for controlling the electric field magnitude of an electro-hydrodynamic system including placing an energy harvester comprising a charge source at a distance away from electrical ground, the distance being an equilibrium distance; receiving a first measurement of a parameter indicative of electric field magnitude near the charge source; and in response to the first measurement surpassing a threshold, increasing the distance between the energy harvester and electrical ground.
    Type: Grant
    Filed: October 1, 2012
    Date of Patent: August 6, 2013
    Assignee: Accio Energy, Inc.
    Inventors: Dawn White, Randy Stevenson
  • Patent number: 6753619
    Abstract: The present invention includes a novel regenerative energy management system having a flywheel assembly with an integrated motor-generator which is coupled to a drivetrain motor-generator. The coupling between the flywheel assembly and the drivetrain motor-generator includes a system controller having integrated voltage control and inverters. The flywheel of the present invention avoids the use of expensive bearings, vacuum systems, cooling systems, and other such support subsystems found in other high technology flywheels. The integration of the flywheel-motor-generator system saves valuable space within the vehicle, reduces the number of bearings necessary for operation, and simplifies the coupling of the flywheel motor generator to the flywheel. The system controller has integrated inverters and voltage control that determine the direction and flow of current between the flywheel assembly and the driveline motor-generator.
    Type: Grant
    Filed: August 6, 2002
    Date of Patent: June 22, 2004
    Assignee: Visteon Global Technologies, Inc.
    Inventors: Randy Stevenson, Zhesheng Li, Carl Klaes, Mahmoud Abdel-haq
  • Publication number: 20040026927
    Abstract: The present invention includes a novel regenerative energy management system having a flywheel assembly with an integrated motor-generator which is coupled to a drivetrain motor-generator. The coupling between the flywheel assembly and the drivetrain motor-generator includes a system controller having integrated voltage control and inverters. The flywheel of the present invention avoids the use of expensive bearings, vacuum systems, cooling systems, and other such support subsystems found in other high technology flywheels. The integration of the flywheel-motor-generator system saves valuable space within the vehicle, reduces the number of bearings necessary for operation, and simplifies the coupling of the flywheel motor generator to the flywheel. The system controller has integrated inverters and voltage control that determine the direction and flow of current between the flywheel assembly and the driveline motor-generator.
    Type: Application
    Filed: August 6, 2002
    Publication date: February 12, 2004
    Inventors: Randy Stevenson, Zhesheng Li, Carl Klaes, Mahmoud Abdel-haq